Xen users - Dec 2010 - 100% usage in udev kernel BUG at /root/xen-4.0.1/linux-2.6-pvops.git/arch/x86/xen/mmu.c:1885

Hello, I''m using Debian Lenny with Xen 4.0.1 with standard 2.6.32.25
kernel



In my new server after some period of running I got 100% usage of udev
process and I can''t stop it. 


I upgraded to the newest libc and udev but the problem is here again.  


Here dmesg and pastebin http://pastebin.com/JNJPFSHz [1] 


[229995.580221] ------------[ cut here ]------------[229995.580419] kernel
BUG at
/root/xen-4.0.1/linux-2.6-pvops.git/arch/x86/xen/mmu.c:1885![229995.580624]
invalid opcode: 0000 [#1] SMP [229995.580749] last sysfs file:
/sys/devices/virtual/block/dm-49/removable[229995.580858] CPU 4
[229995.580966] Modules linked in: iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi nfsd [last unloaded: scsi_wait_scan][229995.581320]
Pid: 22551, comm: lvcreate Not tainted 2.6.32.25 #6 S5520HC[229995.581442]
RIP: e030:[] [] pin_pagetable_pfn+0x35/0x70[229995.581657] RSP:
e02b:ffff8808d7093c18 EFLAGS: 00010282[229995.581767] RAX: 00000000ffffffea
RBX: 00000000005fcf6e RCX: 00000000000001e7[229995.581956] RDX:
0000000000000000 RSI: 0000000000000001 RDI: ffff8808d7093c18[229995.582162]
RBP: ffff8808d7093c38 R08: 0000000000000b70 R09:
00003ffffffff000[229995.582437] R10: 0000000000007ff0 R11: 0000000000000040
R12: 0000000000000003[229995.582625] R13: ffff8809ce149200 R14:
ffff880202741078 R15: 00000000005fcf6e[229995.582828] FS:
00007f0218f77780(0000) GS:ffff8800280c5000(0000)
knlGS:0000000000000000[229995.583032] CS: e033 DS: 0000 ES: 0000 CR0:
000000008005003b[229995.583153] CR2: 00007f80c166fb80 CR3: 00000001fd1b1000
CR4: 0000000000002660[229995.583434] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000[229995.583695] DR3: 0000000000000000
DR6: 00000000ffff0ff0 DR7: 0000000000000400[229995.583889] Process lvcreate
(pid: 22551, threadinfo ffff8808d7092000, task
ffff8809ce1b8790)[229995.584157] Stack:[229995.584251] ffff880800000000
000000000069f8bb 0000000100000000 00000000005fcf6e[229995.584394] 
ffff8808d7093c58 ffffffff810420d9 ffffea0014f56010
ffff8809ce149180[229995.584693]  ffff8808d7093c68 ffffffff8104211e
ffff8808d7093ca8 ffffffff81131c17[229995.585012] Call Trace:[229995.585117]
[] xen_alloc_ptpage+0x89/0xa0[229995.585230] []
xen_alloc_pte+0xe/0x10[229995.585364] []
__pte_alloc+0x87/0x130[229995.585475] []
handle_mm_fault+0x350/0xb70[229995.585654] [] ?
follow_page+0x177/0x420[229995.585770] []
__get_user_pages+0x1d1/0x590[229995.585886] [] ?
add_page_to_unevictable_list+0x99/0xc0[229995.586012] []
__mlock_vma_pages_range+0xbe/0x1b0[229995.586137] [] ?
pvclock_clocksource_read+0x4e/0xc0[229995.586260] []
mlock_fixup+0x18f/0x220[229995.586463] []
do_mlockall+0x87/0xa0[229995.586645] []
sys_mlockall+0xaf/0xe0[229995.586754] []
system_call_fastpath+0x16/0x1b[229995.586862] Code: 20 89 7d e0 80 3d 1d 13
d1 00 00 74 31 48 89 55 e8 48 8d 7d e0 be 01 00 00 00 31 d2 41 ba f0 7f 00
00 e8 df 73 fc ff 85 c0 74 0b  0b eb fe 0f 1f 80 00 00 00 00 c9 c3 66 0f 1f
44 00 00 48 89 [229995.587924] RIP []
pin_pagetable_pfn+0x35/0x70[229995.588043] RSP [229995.588587] ---[ end
trace f9e4617efaa82582 ]---

Links:
------
[1] http://pastebin.com/JNJPFSHz


-------------------------------------

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